package shayu.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class ShayuFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {
                // 1. RequestContextHolder 拿到刚进来的这个请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                HttpServletRequest request = attributes.getRequest(); // 老请求
                // 同步请求头
                String cookie = request.getHeader("Cookie");
                // 给新请求同步了老请求的cookie
                template.header("Cookie",cookie);
            }
        };
    }
}
